암반생물막의 군집구조와 생물량의 시, 공간적인 변화를 확인하기 위하여, 파도에 대한 노출이 다른 고사포와 격포에 서 11월부터 2011년 9월까지 격월로 암반조각을 채집하였다. 군집구조는 채집된 암반조각을 칫솔로 긁어 광학현미경 하에서 미세조류의 분류군별 개체수를 계수하여 분석하였고, 생물량은 NDVI, VI, 엽록소 a 농도를 측정하여 확인하였 다. 고사포와 격포의 조간대 암반생물막에서 가장 우점하는 분류군은 Aphanotece spp., Lyngbya spp.를 포함하는 남조류 였으며, 환경스트레스가 적은 조간대 하부에서는 규조류의 출현율이 높게 나타났다. 암반생물막에서 우점하는 규조류는 Navicula spp., Achnanthes spp.와 Licmophora spp.로 확인되었다. 식생지수와 엽록소 a 농도는 격포에 비해 고사포 생물막에서 높게 나타났다. 식생지수인 NDVI와 VI는 고사포에서 각각 0.49-0.40(평균 0.43), 2.64-3.22(평균 2.90)였으 며, 격포의 암반생물막은 NDVI와 VI가 각각 0.32-0.41(평균 0.38), 2.03-2.86(평균 2.48)으로 확인되었다. 엽록소 a의 농도는 고사포에서 12.79-32.87 ㎍/㎠(평균 22.84 ㎍/㎠)였고, 격포에서는 11.14-18.25 ㎍/㎠(평균 15.48 ㎍/㎠)로 식생지수와 마찬가지로 1월(겨울)에 최대, 3월(봄)에 최소인 계절 변화를 보였다. 엽록소 a 농도는 NDVI, VI와 양의 상관관계를 보여 비파괴적인 식생지수 측정방법이 파괴적인 엽록소 a 추출 방법을 대체할 수 있음을 알려준다. 결론적으 로 암반생물막은 여름보다 겨울에, 조간대 상부보다 중부와 하부에서, 파도에 보호된 해안보다 노출된 해안에서 높은 값을 보였다.
The purpose of this study is to observe how balance exercise on an unstable platform and on a stable platform affects balance ability. The subjects were 35 adults in their 20s and were randomly assigned to a stable platform group and an unstable platform group. They performed balance exercise three times per week for six weeks. Balance exercise introduced by previous research was modified and complemented for use in this study. Balance ability of the subjects was measured through center of pressure(COP) area, medial-lateral displacement, and anterior-posterior displacement using a portable balance platform BT4. There was significant difference in the COP area between the unstable platform exercise group and the stable platform exercise group. In comparison in differences between the unstable platform exercise group and the stable platform exercise group after the exercise, there was significant difference in anteriorposterior movement. Therefore, exercise on an unstable platform is more effective than exercise on a stable platform in strengthening balance ability.
This study examines the effects of different environments on the application of hemiplegia patients circuit balance training. Group 1 performed circuit balance training without any auditory intervention Group 2 performed training in noiseless environments and Group 3 performed training in white noise environments. First, among lower extremity muscular strength evaluation items, maximum activity time(MAT) was not significantly different(p>.05). Maximum muscle strength(MMS) increased significantly in Group 3(p<.01), there was no significant difference in MMS among the groups. Average muscle strength(AMS) indexes also significantly increased in Group 3(p<.01), there was no significant difference in AMS among the groups. Second, among balancing ability evaluation items, Berg's balance scale(BBS) scores significantly increased in all groups(p<.05), BBS scores were significantly difference among the groups. Based on the results, Group 1, 2 and Group 1, 3 showed significant increases (p<.05). Functional reach test(FRT) values significantly increased in Group 2, 3(p<.05), and there was no significant difference in FRT values among the groups. Timed up and go(TUG) test values significantly decreased in Group 2, 3(p<.05), and there was no significant difference in TUG test values among the groups. Third, among walking speed evaluation items, the time required to walk 10m significantly decreased in all groups(p<.05), and there was no significant difference in the values among the groups. Average walking speeds showed significant increases in Group 1, 3(p<.05), and there was no significant difference in the values among the groups. Based on the results of this study, noise environments should be improved by either considering auditory interventions and noiseless environments, or by ensuring that white noise environments facilitate the enhancement of balancing ability.
The purpose of this study is to investigate whether there are differences in physique characteristics between the excellent domestic player groups in each sport player's, to prevent epidemiologic damage of musculoskeletal system and to provide fundamental data to improve performances for players. This study has performed for total 60 student players from Y University in Yongin, Gyeonggi-do, consists of 20 Kendo players, 20 Judo players and 20 Taekwondo players. We measured the length and circumference of arm, leg, body using Martin anthropometer to collect the data for 3 groups. There was significant difference in lower left arm length between player groups(p<.01), and Kendo players' right side femoral were longer than other 2 groups for leg length measurement(p<.01). Judo players' circumference for right/left stretched arm/bent upper arm were thicker than other 2 groups(p<.01). Taekwondo players' chest circumference were smaller than other 2 groups(p<.01), and Taekwondo players' right/left femoral circumference were thinner than other 2 groups(p<.05). From this study, it was found that there are physique characteristics differences between the Kendo, Judo and Taekwondo player groups. This indicates that repeated exercise for each sport player causes physique change, and it may cause epidemiologic damage of musculoskeletal system. It is recommended to perform balancing exercise prior to main exercise.
최근 나라꽃으로 사랑받아온 무궁화에 대한 이용방안이 활기를 띠면서 실내공간으로 도입이 가능한 무궁화에 대한 관심이 높아지고 있다. 본 연구는 무궁화 품종 중 꽃과 잎이 아름다운 ‘아랑’에 대한 광적응성 실험을 하였다. 도입광원은 현재 실내등으로 많이 활용되고 있는 형 광등, 삼파장, LED등을 비롯하여 태양광을 실내공간으로 도입하는 광섬유 등 4종류를 선정하여 실험하였다. 광도는 500lux, 750lux, 1,500lux, 2,500lux로 설정하였다. 실험기간은 2016년 5월 2일부터 2016년 10월 7일까지이며 광적응성은 관상가치를 파악하는 엽장, 엽 폭, 초장, 엽수, 낙엽수, 절간장, 개화율, 꽃색상 등의 형태적 측정요소를 측정하였으며, 생리적 활성요소를 알아보고자 LI-6400을 사용하 여 광합성 활성을 측정하였고 기공사진을 촬영하였다. 광원별 실험 결과, 형광등은 1,500lux, 2,500lux, 750lux, 500lux 순이었고, 삼파장등 의 경우, 2,500lux, 1,500lux, 750lux, 500lux 순으로 광도가 높을수록 양호한 생육 및 생장을 보였다. LED등의 경우, 1,500lux, 2,500lux, 750lux, 500lux 순으로 생장량 및 생육상태가 양호하였으며 광섬유의 경우, 2,500lux, 1,500lux, 750lux, 500lux 순으로 광도가 높을수록 원 활한 생장을 하였다. 무궁화 ‘아랑’을 실내공간으로 도입할 경우, 최적광원은 광섬유 였으며, LED등, 형광등, 삼파장 순으로 도입하는 것이 효과적인 것으로 나 타났다. 광도는 대체적으로 1,500lux∼ 2,500lux 범위 내에서 무난하게 잘 자라는 것으로 파악되었다.
무궁화는 나라꽃이라는 상징적 의미가 커서 우리나라 사람들의 관심과 사랑을 많이 받아왔다. 본 연구는 선호하는 무궁화 품종 중 ‘새아침’ 을 실내공간으로 도입할 수 있는지를 파악하기 위하여 실내 광환경을 설정해 주고 광적응성을 실험하였다. 실험구내 설정한 광원은 실내 공간에서 주광원으로 도입되고 있는 LED등, 형광등, 삼파장, 광섬유 등 4종류를 사용하였다. 광도범위는 500lux, 750lux, 1,500lux, 2,500lux로 설정하였다. 실험기간은 2016년 5월 2일부터 2016년 10월 7일까지이며 광적응성에 대한 측정요소는 형태적 특성에 따른 관상 가치와 LI-6400을 사용하여 생리적 특성을 조사하였고 기공사진을 촬영하였다. 실험 결과, 새아침 품종 도입시 가장 적합한 광원은 LED등 이었으며 형광등, 삼파장, 광섬유 순으로 나타났다. 광원별 적합한 광도는 LED등의 경우, 1,500lux, 750lux, 2,500lux, 500lux 순으로 우월 한 생육과 생장을 보였으며 형광등의 경우, 1,500lux, 750lux, 2,500lux, 500lux 순으로 생장량 및 생육상태가 양호하였다. 삼파장등의 경 우, 1,500lux, 750lux, 2,500lux, 500lux 순으로 양호하였다. 광섬유의 경우, 2,500lux, 1,500lux, 750lux, 500lux 순으로 나타나 광도가 높을 수록 원활한 생장을 하였으며 생육상태도 양호하였다. 무궁화 ‘새아침’을 실내공간으로 도입함에 있어서 에너지 절감을 고려해 볼 때, 750lux∼2,500lux 광도범위 내에서 무난히 적응할 수 있을 것으로 사료된다.
This study was performed to grasp the introduction of Korean wild evergreen broad-leaved tree, Ternstroemia gymnanthera, as a plant of indoor garden, and to figure out the light-adaptability under the four types indoor lighting and to provide the introduction plan. The experimental plants, Ternstroemia gymnanthera was purchased from the farmhouse in Jeju-do as a year plant, and it was experimented after the acclimation in the glass-green house of general farm of Gyeongnam National University of Science and Technology for 40 days. The experiment was performed for 1 year more from September 10, 2014 to September 30, 2015. The results of the experiment are as follows. When Ternstroemia gymnanthera is introduced as a plant of the indoor garden, the optical fiber, fluorescent lamp, and LED light in order are suitable to introduce as the proper lighting. In the case of the three-wave light, the growth and development was the worst among the 4 introduced lighting systems, therefore, the growth of Ternstroemia gymnanthera under the three-wave light was incongruous generally. The withering appearance was existed seriously by 500lux. Some leaves were fallen off, but generally smooth growth and development was done in the range of the 1,000lux to 2,000lux. The best intensity for the growth was under the condition of the 1,000lux. When the fluorescent lamp, and LED light are introduced, the most proper luminous intensity is the 2,000lux. When the optical fiber is introduced, the most efficient intensity is the 1,000lux. Generally the smooth growth and development is done under the more luminous intensity. As the result, the wild Ternstroemia gymnanthera is the species of tree to substitute the Ficus benghalensis, or Ficus retusa which is the foreign species, as a central tree or upper tree as well as pot tree, and it is expected to introduce sufficiently as a plant of the indoor garden.